LPCM, TrueHd and DTS-MA on a PS3

[Paden]

Originally Posted by rogman

The sample rate and bit depth may be affecting things as well. I noticed that the PCM track for 300 lists these as (48kHz, 16-bit), maybe the TrueHD track is downsampled in some way?

I've noticed what you did- that on discs with both, the PCM track sounds better. Could make a difference if you had you PS3 set to bitsream rather than linear PCM, but you've confirmed that's not the case. Did you select all the audio options in the setup menu? I noticed when I first got my PS3 that it was only outputting stereo by default. I had to go back and select all the 5.1 options, etc.

I've got most things set to automatic and that seems to work. Everything is robust with the PCM track and flat with TrueHD. My guess is your first statement above is probably accurate. I'm assuming the track is just dumbed down on this particular movie. Since TrueHD is supposed to be output at PCM at approximately the same as PCM, I'm still thinking I might be missing something.

I'll check others to see if the same thing happens.